Combination internal-combustion engine and accessories



4 Sheets-Sheet l P. T. TUCKER COMBINATION INTERNALCOMBUSTION ENGINE AND ACCESSORIES m LN 9% Sept. 18, 1951 Filed NOV. 18, 1947 mums/v70? PREJ row I rucmm %rm/??: r5

Sept. 18, 1951 P. T. TUCKER 2,568,473

COMBINATION INTERNAL-COMBUSTION ENGINE AND ACCESSORIES Filed Nov. 18, 1947 4 Sheets-Sheet 2 INVEN TOR.

\L '1 PRESTO/V 7'. TUCKER Sept. 18, 1951 P. T. TUCKER 2,568,473

COMBINATION INTERNAL-COMBUSTION ENGINE AND ACCESSORIES Filed Nov. 18, 1947 4 Sheets-Sheet 5 INVENTOR. EJTOIV IT T E r Sept. 18, 1951 P. T. TUCKER COMBINATION INTERNAL-COMBUSTION ENGINE AND ACCESSORIES 4 SheetsSheet 4 Filed NOV. 18, 1947 INVENTOR. I PREs rm 7. TUCKER m fla way TOR/V .5

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Patented Sept. 18, 1951 UNITED STATES PATENT OFFICE COMBI ATION INTERNAL-COMBUSTION ENGINE AND ACCESSORIES Preston T. Tucker, Ypsilanti, Mich., assignor to Tucker Gorporation, Chicago, -Il1.,'a. corporation of Delaware 'Application 'November 18, 1947, 'Serlal'No. 786,723

12 Claims. 1

The present invention deals with internal combustion e'ngine's:and is concern'ed primarily with a novel assembly 1 of an internal combustion engine with-accessories which are operatively associated therewith.

There has recently been proposed in vtheautomobiIe-i-ndustryan automobile which includes an engi-ne that is rnountedin the rea'r'of the car,

rathertltan at the tront. Thisengine is of the so-called flat typegthatis, in an engine of this kind, 'the cylinder's are ararnged flat with three 'b'ein-g opposed to three.

"An engine 'of this particular type is illustrated "and described-in the co-p'ending application of Preston T; Tucker, SerialNo. 769,727, filed :August 20, 1947, and entitl'e'd Internal Combustion Engine tor -Autoinobfles," now abandoned.

An internal combustion engine-of the character aforesaid "must have associated therewith :cer-

tain accessories oro erating mechanisms, which,

in turn enter intotheoperation of theengine-it- "self. Accordingly, the invention has in view as its foremost objective, "the provision of an internaleombustion engine' of the flat typ'e together with accessories which are essential to it's operation, and which are combined therewith in a novel manner.

Inasmuch as aninternalicombustion engine of the type with which thisinventionis concerned embodiesra circulatory cooling system, it isnecessary to provide a pump :for circulating the cooling medium. As thiscooling medium is water, this ;.pump.is identified as the -waterpump.

An engine with which the present invention is concerned, also includes a lubricating system through which lubricating oil must be circulated and kept at a required pressure. The circulation of this oilalso functions as a scavenging operation. Thus, this oil pump is another accessory which is essential to an engine of this type.

"Every conventional present day automobile includes a starterfor "the engine and a generator In accordance with the present invention, the's'tarter "and generator-are combined as a single unit. A

further andyehhighly important object of the invention is the provision of an internal combustio'n engine of the type indicated, which has a starter-generator unit operatively associated therewith,=andwhich unit is availed of as a means for driving the water and the oi-l pumps.

required pressure in the fuel.

' driven thereby.

While many (tithe-internal cornbustionengincs which are presently included in automobiles carburct -th'e "fuel before it is supplied to the cylinders, an engine of the typ'e w-ith which the present invention isprimarily corfcernedbperateS under the fuel injectio'n'principle, that is,'the

'fuel is delivered to the 'cylinders under pressure. With sucharuel "injection system? it isnec'es's'ary to provide a mechanical unit 'for:building' up the Thus, another important object :of the invention is to combine with an internal combustion enginefof the cha'racter foresaid, a rueliniector pump-which preferably is driven from the crankshaft 'of the engme.

Every internal combustion engine includes Va1VS WhiGhCOfil;l'O1 the admission of iuel' to cylinders and the scavenging of exhaust gases therefrom. Thus-som'e'means'for actuating the valves isan essential requirement. In accordance with the present invention, the valves are hydraul'ic'a-l-ly actuated, "and another highly important ob-jec't lies in the provision of an internal combustion engine which includes a' valve actuating system that operated hydraulically. This valve actuating system is also driven from' the crankshaftoi the'engine. I

Internalcombustion engines of the type "with which this invention is concerned, also mcludeas an "essential e1emeiitgan "ignition system.

ignition system in turn, must include a distributo'r,and in accordance with the precepts of'this invention, this distributor is driven from the crankshaft of the engine.

Various other more detailed objects andadvantages such as arise in connection with carrying out thBLQbOV-G noted ideas in a .practi'calembodiment, will in part become apparent andiin part be hereinafter stated as the description of the invention proceeds.

The invention, therefore, comprises an internal combustion engine of the flat type, and which has a starter-generator unit operatively associated therewith, a water pump, oil pump, and a high pressure pump for a hydraulic gear shifting system all driven from the starter-generator unit. A fuel pump, valve actuator, and distributor are associated with the engine and driven from the crankshaft.

For a full and more complete understanding of the invention, reference may be had to the following description and accompanying drawings, wherein:

Figure 1 is an end view mostly in elevation but with parts broken away and shown in section of an internal combustion engine having accessories combined therewith in accordance with the precepts of this invention;

Figure 2 is a top plan view of that portion of the engine with which this invention is con cerned. In this view parts are also broken away and shown in section to more clearly bring out details of the mechanism;

Figure 3 is an end view looking from the end which carries the water pump and showing the latter in section and certain of the gears in broken lines;

Figure 4 is a vertical section taken about on the plane represented by the line 4-4 of Figure 2.

Referring now to the drawings wherein like reference characters denote corresponding parts, an engine is shown in each of the figures and referred generally to by the reference character E. While the construction and size of the engine E may be varied in many respects, the invention has particularly in mind an engine of the flat type in which three cylinders are opposed to three. The engine E will also provide for a comparatively large cylinder displacement, and it is intended that it be operated at a low speed and low compression. These comparative terms are referred to the present day automobile engine as t a basis of comparison.

The engine E includes a crankshaft designated IIL'and driveably connected to the forward end of the shaft I is a gear II. Pins shown at I2 may be'employed as the means of establishing the driving relation.

A starter-generator unit is depicted somewhat diagrammatically in Figures 1 and 2 and identified generally as S. As the name implies, this isan electrical unit which may be employed as a motor when it is necessary to start the engine,

but which reverses its operation to become a generator after the engine has been started, and under which condition it is driven by the engine. Regardless of whether the unit S is functioning as a starter or a generator, it includes a main drive shaft I3 which carries at its free end a pinion I4.

An idler gear I5 is rotatable mounted on the .shaft'IB and the gear I5 meshes with both the pinion I4 and the gear I I, thereby completing the drive from the starter-generator shaft I3 to the crankshaft I0 of the engine.

. A water pump is referred to in its entirety by the refenerce character W. The pump W includes a rotor II that isdriveably mounted on a pump shaft I8. Non-rotatably carried by the latter is a gear I9 which meshes with the idler gear I5 from which it is driven. Thus, it is evident that the water pump W is driven from the starter-generator unit S through the shaft I3, pinion I4, idler gear I5 and gear I9.

An oil pump is designated 0 and is shown as comprisin rotors 20 and 2I that are driveably carried by a shaft 22 and enclosed within a housing 23. The shaft 22 at one end carries a hub like member 24 having an inner key-way 25. A sleeve 26 is keyed to this member 24 and also to a projection extending from the gear I9. Thus, the oil pump 0 is also driven from the startergnerator S through the driving connections comprising drive shaft 13, pinion I4, idler I5, gear I9, and sleeve 26. The oil pump 0 builds up the .necessary pressure and provides the scavengin action in the lubricating system of the engine to which it is conductably connected.

If the automobile in which the engine E is included has a transmission that is hydraulically actuated, it will be necessary to build up pressure in this hydraulic system. For this purpose, a high pressure pump is shown diagrammatically at H. This high pressure pump H, includes a i the other accessories,

main pump shaft 21 to which is keyed a sleeve 28. The latter is also keyed to an extension 29 formed on one end of the shaft 22. Thus, the high pressure pump H is driven from the startergenerator unit S, through the drive shaft I3, pinion I4, idler gear I5, gear I9, shaft 22 and sleeve 28.

Referring now more particularly to Figure 4, which will be considered in conjunction with Figures 1 and 2, the end of the crankshaft I0, remote from the gear I I, carries a worm gear 30.

A fuel injection pump is designated F, and like is represented largely diagrammatically. A conduit 3I extends to the fuel system of the engine. The pump F is carried 7 on a base 32 which is anchored to a pedestal 33 upstanding from the engine. The pump F includes a main operating shaft (not illustrated) carrying an extension 34 which is formed at the recess 35, that receives a tongue 36, that upstands from a shaft 31. The shaft 31 is journalled in a sleeve 38m which is carried by the engine block, and at its lower end drivably carries a worm gear 39, which is complemental to and meshes with the worm 30 on the crankshaft I0. Thus, it is evident that the fuel pump F is driven from the main crankshaft Ill of the engine through worm gears 30 and 39, shaft 31, ton ue and recess connection 36 and 35, and extension 34.

It is intended that the valves of the engine E be hydraulically actuated. Thus, the pump for building up pressure in the valve actuating systemis represented diagrammatically-at V. The latter is shown as mounted on a pedestal 40 which is carried by the engine E. The pump V includes a main drive shaft 4|, which extends down into the pedestal 40. A sleeve 42 is keyed to the shaft M and also to a vertically extending shaft 43 that is journalled in a sleeve 44. At its lower end, the shaft 43 carries a worm gear 45 that is complemental to and in mesh with the worm gear 30. Thus, it is evident that the pump V is driven from the engine crankshaft I0, through the medium of the worm gears 30 and 45, shaft 43, sleeve 42 and shaft 4 I.

The distributor for the ignition system is shown at D as being mounted above and carried by the valve actuator mechanism V. Inasmuch as the distributor must operate in synchrony with the valves, the distributor D will be driven from the crankshaft l0, through the same connections above described for the valve actuator V; The

essence While it is believed that the manner in which the several mechanisms associated with: the engine operate, it may be noted that when the engine is to be started, the starter-generator unit S is caused to function as a starter. Thus, through the pinion l4, idler l5, andgear H, the crankshaft l0. of the engine Eis. rotated so as to start the engine. At the same time, the gear I9 is driven from the idler gear l so as to operate the water pump W, the oil pump 0 and high pressure gear shifting pump H and all of these accessories are thereby brought into proper effective operation.

After the engine E gets started, the operation of the unit S takes on the character of a generator. One mechanism for causing this transformation is illustrated and described in the co-pending application of Kenneth E. Lyman, Serial No. 736,143, filed March 21, 1947. With the unit S running as a generator, the shaft l 3 is still driven and is effective to drive the water pump W, oil pump 0, high pressure pump I-I.

As the crankshaft I0 is brought into operation and is rotated either by the starter-generator S or the engine itself, the fuel pump F, valve actuator V and distributor D are driven in the manner above described.

While a preferred specific embodiment of the invention is hereinbefore set forth, it is to be clearly understood that the invention is not to be limited to the exact construction illustrated and described, because various modifications of these details may be provided in putting the invention into practice within the purview of the appended claims.

What i claimed is:

1. In combination, an internal combustion engine including a crankshaft, a starter-generator unit, a gear on the crankshaft, a gear on the starter-generator unit, gear means permanently in mesh with the gears on the crankshaft and on the starter-generator unit permanently drivably connecting them, a fluid pump to supply fluid for operation of the engine, and a permanent driving connection from the pump to the gear means.

2. In combination, an internal combustion engine including a crankshaft, a starter-generator unit, driving connections between said unit and crankshaft, a shiftable transmission, hydraulic means to shift the transmission, a high pressure liquid pump to supply liquid to the hydraulic means, and means connecting said high pressure pump to said starter-generator unit to drive the pump from the unit.

3. In combination, an internal combustion engine including a crankshaft, a circulatory cooling system, and a lubricating system, a starter-generator unit, driving connections between said unit and said crankshaft, a water pump for said cooling system, means for driving said water pump from said unit, an oil pump for said lubricating system, and means for driving said oil pump from said unit.

4. In combination. an internal combustion engine including a crankshaft, a circulatory cooling system, and a lubricating system, a starter-generator unit, driving connections between said unit and said crankshaft, a water pump for said cooling system, an oil pump for said lubricating system, and common means for driving said water pump and oil pump-frorn'said starter-generator unit. I

5. In a combination, an internal combustion engine including a crankshaft, a circulatory cooling system, and a hydraulic gear shifting system, a starter-generator unit, driving connections between said unit and said crankshaft, a water pump for said cooling system, means for driving said water pump 'fromlsaid unit, a high pressure pump for said hydraulic gear shiftingsystem, and means for driving said high pressurepump from said unit.

6. In combination, an internal combustion engine including a crankshaft, a circulatory cooling system-and a hydraulic gear shifting system, a starter-generator unit, driving connections between said unit and said crankshaft, a water pump for said cooling system, 'a high pressure pump for said hydraulic gear shifting system, and common means for driving said water pump and said high pressure pump from said starter-generator unit.

'7. In combination, an internal combustion engine including a crankshaft, a circulatory cooling system, a lubricating system, and a hydraulic gear shifting system, driving connections between said unit and said crankshaft, a water pump for said cooling system, an oil pump for said lubrieating system, a high pressure pump for said hydraulic gear shifting system, and common means for driving said water pump, oil pump, and high pressure pump from said starter-generator unit.

8. In combination, an internal combustion engine including a crankshaft, a fuel system and a valve actuating system, a fuel pump for said system, a valve actuator for said valve actuating system, a worm gear on said crankshaft, and driving connections between said worm gear and said fuel pump and valve actuator respectively.

9. In combination, an internal combustion engine including a fuel system, a valve actuating system, and an ignition system, a fuel injection pump for said fuel system, a valve actuator for said valve actuating system, a distributor for said ignition system, a worm gear on said crankshaft, driving connections between said worm gear and fuel injection pump, and driving connections common to said valve actuator and distributor for driving them from said worm gear.

10. In combination, an internal combustion engine including a crankshaft, a circulatory cooling system, and a fuel system, a starter-generator unit, driving connections between said unit and said crankshaft, a water pump included as a part of said cooling system, means for driving said Water pump from said unit, a fuel injection pump for said fuel system, and means for driving said fuel injection pump from said crankshaft.

11. In combination, an internal combustion engine including a crankshaft, a circulatory cooling system, a lubricating system, and a fuel system, a starter-generator unit, driving connec tions between said unit and said crankshaft, a water pump for said cooling system, an oil pump for said lubricating system, common means for driving said oil pump and said water pump from said starter-generator unit, a fuel injection pump for said fuel system, and means for driving said fuel injection pump from said crankshaft.

12. In combination, an internal combustion engine including a crankshaft, a circulatory cool-- ing system, a lubricating system, a hydraulic gear shifting system, a fuel system, and a hydraulic valve actuating system, a starter-generator unit,

driving connections between saidunitand said crankshaft, a water pump for said cooling system, an oil pump for said lubricating system, a

UNITED STATES Number driving said fuel injection pump and said valve 10 Number actuator from said crankshaft.

' PRESTON T. TUCKER.

REFERENCES CITED me of this patent:

Name Date Winton Apr. 6, 1915 Metzger June 1'7, 1919 White July 1, 1919 Conrad 1 June 29, 1920 Becker June 10, 1941 FOREIGN PATENTS Country Date Switzerland 1 Apr. 1, 1943 

